/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hertzbeat.alert.util;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Objects;

/**
 * alert util
 */
public class AlertUtil {

    /**
     * calculate fingerprint
     * @param fingerPrints finger prints
     */
    public static String calculateFingerprint(Map<String, String> fingerPrints) {
        List<String> keyList = fingerPrints.keySet().stream().filter(Objects::nonNull).sorted().toList();
        List<String> valueList = fingerPrints.values().stream().filter(Objects::nonNull).sorted().toList();
        return Arrays.hashCode(keyList.toArray(new String[0])) + "-"
                + Arrays.hashCode(valueList.toArray(new String[0]));
    }
}
